<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org" xmlns:layout="http://www.ultrag.net.nz/thymeleaf/layout">
<head th:replace="demo/header :: head(~{::title},~{::link})">
    <meta charset="UTF-8">
    <title>11111</title>
    <link rel="stylesheet" th:href="@{/css/index.css}">
    <link rel="stylesheet" th:href="@{/cs/test.css}">
</head>
<body>
    <div th:include="demo/header :: header"></div>
    <div th:include="demo/lefter :: menu"></div>
    <div layout:fragment="content">content</div>
    <div th:insert="demo/footer :: copyright"></div>
</body>
</html>